public override TestResult[] Execute(ITestMethod testMethod)
{
// Get our test context
TestContext testContext = testMethod.GetTestContext();
// Create a new internal test state.
InternalTestState internalTestState = testContext.ResetInternalTestState();
// Convert test argument types
object[] args = null;
if (testMethod.Arguments != null)
{
args = new object[testMethod.Arguments.Length];
for (var i = 0; i < args.Length; i++)
{
args[i] = TypeConversion.ConvertValue(testMethod.ParameterTypes[i].ParameterType, testMethod.Arguments[i]);
}
}
// Execute our test method on our main node.
TestResult mainResult = testMethod.Invoke(args);
// Set a more accurate time elapse duration (end of init to start of cleanup)
mainResult.Duration = internalTestState.EndTime - internalTestState.StartTime;
// Obtain the display name for our test.
string testDisplayName = mainResult.DisplayName ?? testMethod.TestMethodName;
// Reset the internal test state for this test context
internalTestState = testContext.ResetInternalTestState();
// If we have a parallel node to run tests against..
if (Global.ExternalNodeTestServices != null)
{
// If we are only running against the external node
if (Global.OnlyUseExternalNode.GetValueOrDefault())
{
// Only using the external node means the above method invocation already ran on
// the external node, so we quit with the singular result.
return(new[] { mainResult });
}
// Begin using the external node.
internalTestState.InExternalNodeContext = true;
// Execute our test method on our parallel node
TestResult parallelResult = testMethod.Invoke(args);
// Set a more accurate time elapse duration (end of init to start of cleanup)
parallelResult.Duration = internalTestState.EndTime - internalTestState.StartTime;
// Stop using the external node.
internalTestState.InExternalNodeContext = false;
// Set our test names
mainResult.DisplayName = $"{testDisplayName} (built-in)";
parallelResult.DisplayName = $"{testDisplayName} (external)";
return(new[] { mainResult, parallelResult });
}
else
{
var parallelResult = new TestResult
{
Outcome = UnitTestOutcome.Error,
TestFailureException = new Exception("Failed to run parallel test because parallel test node services failed to initialize properly."),
};
// Set our test names
mainResult.DisplayName = $"{testDisplayName} (built-in)";
parallelResult.DisplayName = $"{testDisplayName} (external)";
return(new[] { mainResult, parallelResult });
}
}
